[citation needed]
My counter claim, without citation, is that I actually believe (from experience) that the vast majority of 'open source' projects are in fact released under licenses that already comply with the 10 OSI criteria, and are therefore 'approved' OSI licenses. This is easily witnessed by looking at the licenses of the majority of open source projects — or perhaps even just the most popular ones.
That would seem to go against your claim regarding 'most developers'.
But it's not actually a debate about 'most developers', it's about the OSS projects out there, not individual devs, no?
Done and won. Most open source projects (in 2015) use real open source licenses.
https://github.blog/2015-03-09-open-source-license-usage-on-...
https://solutionshub.epam.com/blog/post/examining-open-sourc...
Thanks for the citations, appreciated. I was on a mobile device when I made my previous comment, and it would've been fiddly to sort out.
Maybe they're all just wrong, but it's worth considering why.